Can the length of the tubes be customized?

Yes, lengths can be customized from 1 to 12000mm or according to your specific demand.

What is the lead time for orders?

The average lead time is within 15 workdays for both peak and off-peak seasons.

What payment terms do you accept?

We accept T/T, L/C, PayPal, and Western Union for payments.

En10210 S355j2 Welded Black Hollow Section Rectangular Steel Tube

Name: En10210 S355j2 Welded Black Hollow Section Rectangular Steel Tube
Brand: Shandong Heng Steel Group Co., Ltd.
SKU: 758414292

Shandong, ChinaShandong Heng Steel Group Co., Ltd.

US$500.00-900.00

5 Tons

Product profile

Customization

Available

After-sales Service

Yes

Warranty

Yes

Model NO.

S355J2 Seamless&Welded Black Steel Hollow Section

Type

Seamless/Welded

Technique

Cold Drawing, Hot Rolled, Welded...

Material

Ss400, Q345,16mn, S355j2, SAE1020, SAE1045...

Surface Treatment

Black

Usage

Pipeline Transport, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Square or Rectangular

Commodity

S355j2 Seamless&Welded Black Steel Hollow Section

Standard

GB, ASTM, JIS, AISI, DIN, BS...

Grade

Ss400, Q345,16mn, S355j2, SAE1020, SAE1045...

Thickness

3-16mm

Square Section

15*15*0.6~3-200*200*4~16mm

Rectangular Section

20*30*0.6~3-150*200*4~12mm

Length

1-12000mm or as Your Demand

Techniques

Cold Drawing, Hot Rolled, Welded...

Package

by Bundle

Orginal

China

Payment

T/T, L/C...

Trade Term

Fob, CFR, CIF...

Application

Building, Oil and Gas Pipeline, Chemical...

Mark

Hengsteel

Sample

Yes

Transport Package

by Bundle

Specification

15*15mm-200*200mm, 20*30mm-150*250mm

Trademark

Hengsteel

Origin

China Mainland

HS Code

7304199000

Production Capacity

5000 Tons/Month

Key features

Wide Material Selection: Available in S355J2, SS400, Q345, 16Mn, SAE1020, and SAE1045 grades.

Flexible Dimensions: Square sections 15x15 to 200x200mm; Rectangular 20x30 to 150x200mm.

Multiple Manufacturing Techniques: Offered in Cold Drawing, Hot Rolled, Welded, ERW, SSAW, and LSAW types.

Versatile Applications: Suitable for building, oil/gas pipelines, chemical, petroleum, and machinery.

Standard Compliance: Manufactured to GB, ASTM, JIS, AISI, DIN, and BS standards.

Custom Length Options: Lengths range from 1 to 12000mm or customized as per customer demand.

Professional Manufacturer: Shandong Heng Steel Group is a professional manufacturer with extensive experience.

Secure Packaging: Products are securely packaged by bundle to ensure safe transportation.

Company profile

Shandong Heng Steel Group Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2011-10-17Nearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤4.35hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CIP

AI-Powered supplier vetting

SummaryShandong Heng Steel Group Co., Ltd. is identified as a China-based manufacturer/factory and group corporation producing galvanized and other steel products. The supplier reports more than 10 production lines, four factories, 6–10 quality-control staff, and 21–30 years of combined R&D engineer experience. It lists numerous management and quality-related certifications and states that exports account for 90% of total sales. Service descriptions mention stock and application information, logistics tracking, quality inspections, sample support, and transportation safety procedures. However, the provided information does not establish contract status, inventory capacity, overseas facilities or agents, ODM/OEM services, SDK or design capability, raw-material traceability, customer cases, or detailed production volumes. Financial information is not assessed.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and Group Corporation, operating as Shandong Heng Steel Group Co., Ltd. in Shandong, China. The audit record also identifies galvanized coil and steel coil as its primary products, supporting its classification as a steel manufacturing supplier.

CertificationsThe supplier lists multiple management, quality, environmental, occupational-safety, and industry certifications, including ISO 9001, ISO 14001, OHSAS/OHSMS 18001, ASME, and TS 16949. A TUV Rheinland audit is recorded with a validity period from September 18, 2025 to September 17, 2026, although the supplied audit result code is not explained.

After-Sales capabilityThe supplier describes after-sales support involving price and product suggestions, transport-status updates until pickup, stockpile and application information, and logistics tracking. It also reports sample support and quality-control procedures, but the specific after-sales service scope, response standards, and overseas service capabilities remain unverified.

Production capacityProduction resources are supported by the stated four factories, more than 10 production lines, 6–10 quality-control staff, and product categories covering galvanized coil, galvanized roofing sheet, wear-resistant plate, weather-resistant plate, and boiler/pressure-vessel plate. Annual productivity quantities are not provided, while the supplier reports that exports represent 90% of total sales.